CAJ | 학술논문

在无线传感器网络中，经典Leach分簇算法作为一种基础分簇算法有着重要的意义。然而，当网络突然发生异常（如某些节点死亡）时，Leach算法存在容错性问题。本文考虑到现实中可能出现的一种特别的突发情况，结合能量因素和节点损耗个数，对Leach算法的阈值计算公式进行改进，提出一种改进的Leach 算法（τ-Leach算法）。τ-Leach算法在突发事件发生后，能使网络负担更加均衡地分配到所有剩余节点，尽量重新平衡各节点能量。最后，仿真结果表明，τ-Leach算法能一定程度使节点能量消耗重平衡，延长网络生存时间。
재무선전감기망락중，경전Leach분족산법작위일충기출분족산법유착중요적의의。연이，당망락돌연발생이상（여모사절점사망）시，Leach산법존재용착성문제。본문고필도현실중가능출현적일충특별적돌발정황，결합능량인소화절점손모개수，대Leach산법적역치계산공식진행개진，제출일충개진적Leach 산법（τ-Leach산법）。τ-Leach산법재돌발사건발생후，능사망락부담경가균형지분배도소유잉여절점，진량중신평형각절점능량。최후，방진결과표명，τ-Leach산법능일정정도사절점능량소모중평형，연장망락생존시간。
As a basic clustering algorithm , the classic Leach algorithm has important significance in wire-less sensor network .However , Leach algorithm exists imperfection of fault -tolerance , when a certain anomaly of the network arises ( such as some nodes dead suddenly ) .In this paper , combined with energy factors and the number of losing nodes , we improve threshold value of Leach algorithm and an improved Leach routing clustering algorithm (τ-Leach ) has been built , which is as a kind of method to try to balance the energy of each node in that particular case .Finally, the simulation result shows that ,τ-Leach algorithm can balance the consumption of the nodes energy in a certain degree and prolong the life time of network .